The dwc2 USB driver now works on Lantiq ar9, but the
default is still ltq-hcd-ar9. This patch switches to
dwc2 by default.
v2: all ar9 boards (v1 was just for BTHOMEHUBV3A and WBMR)
Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com>
SVN-Revision: 49254
